/* ========================================
   鼎峰名车高价回收 - 主样式表
   ======================================== */

/* === CSS Variables === */
:root {
  --color-bg-primary: #0a1628;
  --color-bg-secondary: #111d33;
  --color-bg-card: #162240;
  --color-bg-card-hover: #1a2a4a;
  --color-accent-green: #00b894;
  --color-accent-green-dark: #009d7e;
  --color-accent-gold: #f59e0b;
  --color-accent-gold-dark: #d97706;
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-border: rgba(148, 163, 184, 0.12);
  --color-border-hover: rgba(0, 184, 148, 0.3);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --font-en: "Oswald", sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow-green: 0 0 30px rgba(0, 184, 148, 0.15);
  --shadow-glow-gold: 0 0 30px rgba(245, 158, 11, 0.15);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* === Reset & Base === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-cn);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  color: inherit;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* === Container === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === Section === */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--color-accent-green);
  text-transform: uppercase;
  margin-bottom: 16px;
  padding: 6px 16px;
  border: 1px solid rgba(0, 184, 148, 0.3);
  border-radius: 20px;
  background: rgba(0, 184, 148, 0.06);
}

.section-title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 17px;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-gold-dark) 100%);
  color: #1a1a2e;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
}

.btn-primary::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -100%;
  width: 60%;
  height: 200%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
}

.btn-primary:hover::after {
  left: 150%;
}

.btn-outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 1.5px solid rgba(241, 245, 249, 0.3);
}

.btn-outline:hover {
  border-color: var(--color-accent-green);
  color: var(--color-accent-green);
  background: rgba(0, 184, 148, 0.06);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
  border-radius: var(--radius-md);
}

.btn-block {
  width: 100%;
  padding: 16px;
  font-size: 17px;
}

/* === Navbar === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 36px;
  height: 36px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a:hover {
  color: var(--color-accent-green);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-green);
  transition: width var(--transition-normal);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 8px 20px;
  background: var(--color-accent-green);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition-normal);
}

.nav-cta:hover {
  background: var(--color-accent-green-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 184, 148, 0.3);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-normal);
  border-radius: 2px;
}

/* === Hero === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 22, 40, 0.7) 0%,
    rgba(10, 22, 40, 0.5) 40%,
    rgba(10, 22, 40, 0.75) 70%,
    rgba(10, 22, 40, 0.95) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 120px 24px 80px;
  max-width: 900px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 24px;
  background: rgba(0, 184, 148, 0.1);
  border: 1px solid rgba(0, 184, 148, 0.25);
  border-radius: 30px;
  font-size: 14px;
  color: var(--color-accent-green);
  margin-bottom: 32px;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  color: var(--color-text-primary);
}

.hero-highlight {
  background: linear-gradient(135deg, var(--color-accent-gold) 0%, #fbbf24 50%, var(--color-accent-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-en);
  font-weight: 700;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--color-text-secondary);
  line-height: 2;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 13px;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-8px); }
  60% { transform: translateX(-50%) translateY(-4px); }
}

/* === Stats Bar === */
.stats-bar {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  display: flex;
  align-items: baseline;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2px;
}

.stat-number {
  font-family: var(--font-en);
  font-size: 48px;
  font-weight: 700;
  color: var(--color-accent-green);
  line-height: 1;
}

.stat-suffix {
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-accent-green);
}

.stat-label {
  width: 100%;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: 8px;
}

/* === Advantages === */
.advantages {
  background: var(--color-bg-primary);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.advantage-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  transition: all var(--transition-normal);
}

.advantage-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.advantage-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 24px;
}

.advantage-icon svg {
  width: 100%;
  height: 100%;
}

.advantage-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text-primary);
}

.advantage-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.advantage-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.advantage-list li {
  font-size: 14px;
  color: var(--color-text-secondary);
  padding-left: 20px;
  position: relative;
}

.advantage-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent-green);
  opacity: 0.6;
}

/* === Process === */
.process {
  background: var(--color-bg-secondary);
}

.process-timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.process-line {
  position: absolute;
  left: 32px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent-green) 0%, rgba(0, 184, 148, 0.1) 100%);
}

.process-step {
  display: flex;
  gap: 32px;
  padding: 32px 0;
  position: relative;
}

.process-number {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-bg-card);
  border: 2px solid var(--color-accent-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-accent-green);
  position: relative;
  z-index: 1;
}

.process-content {
  flex: 1;
  padding-top: 8px;
}

.process-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text-primary);
}

.process-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.process-detail {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.process-detail span {
  font-size: 13px;
  color: var(--color-accent-green);
  padding: 4px 12px;
  background: rgba(0, 184, 148, 0.08);
  border-radius: 20px;
  border: 1px solid rgba(0, 184, 148, 0.15);
}

/* === Brands === */
.brands {
  background: var(--color-bg-primary);
}

.brands-categories {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.brand-category {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-normal);
}

.brand-category:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.brand-category-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.brand-category-header h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text-primary);
}

.brand-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.brand-tag {
  padding: 6px 14px;
  background: rgba(0, 184, 148, 0.06);
  border: 1px solid rgba(0, 184, 148, 0.15);
  border-radius: 20px;
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.brand-tag:hover {
  background: rgba(0, 184, 148, 0.12);
  border-color: var(--color-accent-green);
  color: var(--color-accent-green);
}

.brands-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 24px;
  background: rgba(0, 184, 148, 0.04);
  border: 1px solid rgba(0, 184, 148, 0.12);
  border-radius: var(--radius-md);
}

.brands-note svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.brands-note p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* === Compare === */
.compare {
  background: var(--color-bg-secondary);
}

.compare-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}

.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

.compare-table thead th {
  background: var(--color-bg-card);
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.compare-table thead th.highlight {
  background: rgba(0, 184, 148, 0.1);
  color: var(--color-accent-green);
}

.compare-table tbody tr {
  background: var(--color-bg-primary);
  transition: background var(--transition-fast);
}

.compare-table tbody tr:hover {
  background: var(--color-bg-card);
}

.compare-table td.label {
  font-weight: 600;
  color: var(--color-text-primary);
}

.compare-table td.highlight {
  background: rgba(0, 184, 148, 0.04);
  color: var(--color-accent-green);
}

.compare-table td.highlight strong {
  color: var(--color-accent-green);
}

.compare-cta {
  text-align: center;
}

.compare-cta p {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

/* === Cases === */
.cases {
  background: var(--color-bg-primary);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-accent);
}

.case-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.case-card:hover .case-image img {
  transform: scale(1.05);
}

.case-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: var(--color-accent-gold);
  color: #1a1a2e;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
}

.case-info {
  padding: 24px;
}

.case-info h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text-primary);
}

.case-details {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.case-details span {
  font-size: 13px;
  color: var(--color-text-muted);
}

.case-prices {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  padding: 16px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
}

.case-price-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.price-label {
  font-size: 13px;
  color: var(--color-text-muted);
}

.price-value {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.price-value.highlight {
  color: var(--color-accent-gold);
  font-size: 22px;
}

.case-profit {
  font-size: 14px;
  color: var(--color-accent-green);
  padding: 12px;
  background: rgba(0, 184, 148, 0.06);
  border-radius: var(--radius-sm);
  text-align: center;
}

.case-profit strong {
  color: var(--color-accent-gold);
}

/* === Testimonials === */
.testimonials {
  background: var(--color-bg-secondary);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-normal);
}

.testimonial-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.testimonial-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}

.testimonial-text {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent-green), var(--color-accent-green-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.author-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.author-info strong {
  font-size: 15px;
  color: var(--color-text-primary);
}

.author-info span {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* === FAQ === */
.faq {
  background: var(--color-bg-primary);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-normal);
}

.faq-item.active {
  border-color: var(--color-border-hover);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-accent-green);
}

.faq-question svg {
  flex-shrink: 0;
  transition: transform var(--transition-normal);
  color: var(--color-text-muted);
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
  color: var(--color-accent-green);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.9;
}

/* === Estimate === */
.estimate {
  background: var(--color-bg-secondary);
}

.estimate-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.estimate-left {
  padding: 20px 0;
}

.estimate-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text-primary);
  line-height: 1.4;
}

.estimate-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.estimate-benefits {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
}

.benefit-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--color-text-secondary);
}

.estimate-hotline {
  padding: 24px;
  background: rgba(245, 158, 11, 0.06);
  border: 1px solid rgba(245, 158, 11, 0.15);
  border-radius: var(--radius-md);
}

.estimate-hotline p {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.hotline-number {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent-gold);
}

.hotline-number:hover {
  color: var(--color-accent-gold-dark);
}

/* === Form === */
.estimate-form {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--color-text-primary);
  text-align: center;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: 15px;
  transition: border-color var(--transition-fast);
  outline: none;
}

.form-group input::placeholder {
  color: var(--color-text-muted);
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--color-accent-green);
  box-shadow: 0 0 0 3px rgba(0, 184, 148, 0.1);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-note {
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 16px;
}

/* === Bottom CTA === */
.bottom-cta {
  padding: 80px 0;
  background: linear-gradient(135deg, rgba(0, 184, 148, 0.08) 0%, rgba(245, 158, 11, 0.06) 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.bottom-cta-content {
  text-align: center;
}

.bottom-cta-content h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text-primary);
}

.bottom-cta-content p {
  font-size: 17px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.bottom-cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* === Footer === */
.footer {
  background: var(--color-bg-primary);
  padding: 64px 0 0;
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-logo .logo-icon {
  width: 32px;
  height: 32px;
}

.footer-logo span {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-primary);
}

.footer-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 20px;
}

.footer-links a {
  display: block;
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent-green);
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 6px 0;
}

.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* === Floating CTA === */
.floating-cta {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  pointer-events: none;
}

.floating-cta.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.floating-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-gold-dark));
  color: #1a1a2e;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.4);
  transition: all var(--transition-normal);
}

.floating-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.5);
}

/* === Modal === */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  max-width: 420px;
  width: 90%;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-icon {
  margin-bottom: 24px;
}

.modal-content h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text-primary);
}

.modal-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  line-height: 1.7;
}

/* === Fade In Up Animation === */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === Responsive === */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 42px;
  }

  .section-title {
    font-size: 32px;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .brands-categories {
    grid-template-columns: 1fr;
  }

  .cases-grid {
    grid-template-columns: 1fr;
  }

  .estimate-wrapper {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-trust {
    flex-direction: column;
    gap: 12px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .stat-number {
    font-size: 36px;
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 28px;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .process-line {
    left: 20px;
  }

  .process-number {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .process-step {
    gap: 20px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .bottom-cta-content h2 {
    font-size: 28px;
  }

  .floating-cta {
    bottom: 20px;
    right: 20px;
  }

  .floating-btn {
    width: 48px;
    height: 48px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 26px;
  }

  .hero-badge {
    font-size: 12px;
    padding: 6px 16px;
  }

  .stat-number {
    font-size: 28px;
  }

  .advantage-card {
    padding: 24px;
  }

  .estimate-form {
    padding: 24px;
  }

  .modal-content {
    padding: 32px 24px;
  }
}

/* ==================== Luxury Popup ==================== */
.luxury-popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.luxury-popup-overlay.active {
  opacity: 1;
  visibility: visible;
}

.luxury-popup {
  position: relative;
  width: 92%;
  max-width: 900px;
  height: 85vh;
  max-height: 700px;
  border-radius: 24px;
  overflow: hidden;
  background: #0a1628;
  border: 2px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5), 0 0 80px rgba(0, 184, 148, 0.15);
  transform: scale(0.85) translateY(30px);
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.luxury-popup-overlay.active .luxury-popup {
  transform: scale(1) translateY(0);
}

.luxury-popup-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/luxury-watch.jpeg') center/cover no-repeat;
  filter: brightness(0.7) saturate(1.3);
  transform: scale(1.05);
  animation: luxuryBgZoom 15s ease-in-out infinite alternate;
}

@keyframes luxuryBgZoom {
  from { transform: scale(1.05); }
  to { transform: scale(1.15); }
}

.luxury-popup::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 22, 40, 0.5) 0%, rgba(10, 22, 40, 0.3) 50%, rgba(10, 22, 40, 0.5) 100%);
  z-index: 1;
}

.luxury-popup-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 10;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(10, 22, 40, 0.6);
  backdrop-filter: blur(4px);
  color: #94a3b8;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.luxury-popup-close:hover {
  background: rgba(245, 158, 11, 0.2);
  border-color: #f59e0b;
  color: #f59e0b;
  transform: rotate(90deg);
}

.luxury-popup-close svg {
  width: 20px;
  height: 20px;
}

.luxury-popup-content {
  padding: 48px 40px;
  text-align: center;
}

.luxury-popup-badge {
  display: inline-block;
  padding: 6px 20px;
  border: 1px solid rgba(0, 184, 148, 0.4);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  color: #00b894;
  margin-bottom: 24px;
  background: rgba(0, 184, 148, 0.08);
}

.luxury-popup-title {
  font-size: 32px;
  font-weight: 800;
  color: #f1f5f9;
  margin-bottom: 16px;
  line-height: 1.3;
}

.luxury-popup-desc {
  font-size: 16px;
  color: #94a3b8;
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.luxury-popup-brands {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 32px;
}

.luxury-popup-brands span {
  padding: 6px 16px;
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 16px;
  font-size: 13px;
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.08);
  transition: all 0.3s ease;
}

.luxury-popup-brands span:hover {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.5);
}

.luxury-popup-btn {
  display: inline-block;
  padding: 14px 48px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  border-radius: 50px;
  text-decoration: none;
  letter-spacing: 1px;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.4);
  transition: all 0.3s ease;
}

.luxury-popup-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.5);
}

@media (max-width: 768px) {
  .luxury-popup-content {
    padding: 36px 24px;
  }

  .luxury-popup-title {
    font-size: 24px;
  }

  .luxury-popup-desc {
    font-size: 14px;
  }

  .luxury-popup-brands span {
    font-size: 12px;
    padding: 5px 12px;
  }

  .luxury-popup-btn {
    padding: 12px 36px;
    font-size: 14px;
  }

  /* 移动端隐藏两侧手表 */
  .luxury-popup-side {
    display: none;
  }
}

/* 三列布局 */
.luxury-popup-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 40px 30px;
}

.luxury-popup-side {
  flex: 0 0 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.luxury-watch-img {
  width: 160px;
  height: 160px;
  object-fit: cover;
  border-radius: 16px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.luxury-watch-img:hover {
  transform: scale(1.05) translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 184, 148, 0.3);
  border-color: rgba(0, 184, 148, 0.4);
}

.luxury-watch-label {
  font-size: 14px;
  font-weight: 600;
  color: #f1f5f9;
  letter-spacing: 1px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

.luxury-popup-content {
  flex: 1;
  padding: 48px 40px;
  text-align: center;
}